Home / 20,201.30-27,877.70-11,248.90

Finding the Fourth Proportional to 20,201.30, 27,877.70 and 11,248.90

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Solution

The fourth proportional to 20,201.30, 27,877.70 and 11,248.90 is: 15,523.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.30 : 27,877.70 = 11,248.90 : x
  2. Step 2: Convert to fraction form
    20,201.30/27,877.70 = 11,248.90/x
  3. Step 3: Cross multiply
    20,201.30x = 27,877.70 × 11,248.90
  4. Step 4: Simplify right side
    20,201.30x = 313,593,459.53
  5. Step 5: Solve for x
    x = 313,593,459.53/20,201.30
  6. Step 6: Final answer
    x = 15,523.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.